Practical questions

You will complete eight Practical Activity Groups (PAGs) if you are studying GCSE Chemistry. If you are studying GCSE Combined Science you will complete 16, of which five are in Chemistry.

You could be asked questions about the apparatus, methods, safety precautions, results, analysis and evaluation of these experiments.

There are two PAGs in the Monitoring and controlling chemical reactions section:

Measuring rates of reaction, eg Investigate the effect of surface area or concentration on the rate of an acid/carbonate reaction
Titration (GCSE Chemistry only), eg Titration of a strong acid and strong alkali to find the concentration of the acid using an appropriate pH indicator

Learn about practicals with Dr Alex Lathbridge

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Dr Alex Lathbridge answers questions about practicals.

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Sample question 1 - Foundation

Question

In a titration, dilute acid is added from a burette to an alkali in a conical flask. The alkali contains a few drops of phenolphthalein indicator.

State the colour change observed at the end point. [1 mark]

Sample exam questions - monitoring chemical reactions - OCR GatewayPractical questions